Patents by Inventor Yuji Harazaki

Yuji Harazaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Planographic dry offset master plate
    Patent number: 4020761
    Abstract: A planographic dry offset master plate composed of a substrate and, formed thereon, a crosslinking agent-cured layer of a diorganopolysiloxane in which 5 to 40 mole % of the organic groups directly bonded to silicon atoms are phenyl groups. The master plate is especially suitable for plate-making by an electrostatic process and a direct image process. The resulting printing plate has good durability and are free from scumming during printing.
    Type: Grant
    Filed: December 24, 1975
    Date of Patent: May 3, 1977
    Assignees: Tomoegawa Paper Co., Ltd., Shin-Etsu Chemical Industry Co., Ltd.
    Inventors: Makoto Ogiwara, Kenichi Tanaka, Yukio Kojima, Kohichi Nakamura, Yuji Harazaki, Minoru Takamizawa, Yoshio Inoue, Toshikazu Sugita